40230732 has 18 divisors (see below), whose sum is σ = 93923004. Its totient is φ = 13402920.

The previous prime is 40230713. The next prime is 40230739. The reversal of 40230732 is 23703204.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 40230699 and 40230708.

It is not an unprimeable number, because it can be changed into a prime (40230739) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21057 + ... + 22887.

Almost surely, 2^40230732 is an apocalyptic number.

It is an amenable number.

40230732 is an abundant number, since it is smaller than the sum of its proper divisors (53692272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40230732 is an equidigital number, since it uses as much as digits as its factorization.

40230732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3669 (or 1836 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 40230732 is about 6342.7700573172. The cubic root of 40230732 is about 342.6515059548.

Adding to 40230732 its reverse (23703204), we get a palindrome (63933936).

The spelling of 40230732 in words is "forty million, two hundred thirty thousand, seven hundred thirty-two".